We'll look back at a song so lyrically infamous that it acted as the powder keg behind parental advisory stickers being placed on various albums.

Parental Advisory The song “Darling Nikki” was so, well, raunchy that it pushed Tipper Gore, wife of former Vice President Al Gore, to create the Parental Advisory sticker for albums.

In 1990, George Carlin released a comedy album titled "Parental Advisory: Explicit Lyrics." According to a warning in the liner notes: "This recording contains no backmasking or subliminal ...

Then it was "Explicit Lyrics: Parental Advisory". It has been slightly rejigged a couple of times and the current version - with its stark black and white lettering - is from 1993.

Then it was "Explicit Lyrics: Parental Advisory". It has been slightly rejigged a couple of times and the current version - with its stark black and white lettering - is from 1993.